Commit 87e74b01 authored by Ralf Jung's avatar Ralf Jung


parent c2a00849
Pipeline #191 passed with stage
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\ralf{Copy the rest of the explanation from the paper, when that one is more polished.}
\paragraph{The division operation $\mdiv$.}
\paragraph{The division operator $\mdiv$.}
One way to describe $\mdiv$ is to say that it extracts the witness from the extension order: If $\melt \leq \meltB$, then $\melt \mdiv \meltB$ computes the difference between the two elements (\ruleref{cmra-div-op}).
Otherwise, $\mdiv$ can have arbitrary behavior.
This means that, in classical logic, the division operator can be defined for any PCM using the axiom of choice, and it will trivially satisfy \ruleref{cmra-div-op}.
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